APA (7th ed.) Citation

Ernst, P. (2009). The Red Hell of Jupiter. Project Gutenberg.

Chicago Style (17th ed.) Citation

Ernst, Paul. The Red Hell of Jupiter. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Ernst, Paul. The Red Hell of Jupiter. Project Gutenberg, 2009.

Warning: These citations may not always be 100% accurate.